W
t
C
a1
b1
a2
b2
e1/e2
f1/f2

 

=width or diameter of the holes
=centre distance of the holes
=bridge
=width of the panel
=length of the panel
=width of the perforated zone
=length of the perforated zone
=non perforated zone in longitudinal direction
=non perforated zone in transverse direction

DIN/EN/ISO 24043

width of the hole

centre distance

free area

material thickness

W

t

Ao%

0,5

0,75

1,0

1,5

2,0

2,5

3,0

4,0

5,0

6,0

8,0

11,0

53,0

s

s

s

s

s

10,0

16,0

39,0

s

s

s

s

s

s

s

s

12,0

18,0

44,5

s

s

s

s

s

s

14,0

21,0

44,5

s

s

s

s

25,0

40,0

39,0

s

s

s

30,0

54,0

31,0

s

s

s

s

35,0

56,0

39,0

s

s

40,0

70,0

32,5

s

s

s

s

45,0

70,0

41,5

s

s

s

50,0

80,0

39,0

s

s

s

s

60,0

80,0

46,0

s

s

s

s

70,0

90,0

60,5

s

s

s

s